UCS-4401H

The UCS-4401H has the following features including High-Voltage, High-Current Outputs;Output Transient Protection;CMOS, PMOS, NMOS,TTL Compatible;Internal Pull-Down Resistors;Low-Power CMOS Latches;High-Reliability Screening to MIL-STD-883, Class B.

HIGH-VOLTAGE, HIGH-CURKENT interface for military, aerospace and related applications is supplied by these latched drivers. Type UCS-4401 H contains four pairs of latches and drivers: Type LJCS-4801 H has eight pairs of latches and drivers.The integrated circuits' CMOS inputs work with standard CMOS. PMOS and NMOS logic levels and(with appropriate pull-up resistors) with TTL or DTI circuits. The bipolar open-collector outputs can be used with relays, solenoids, motors, LED or incandescent displays, and other high-power loads.The output transistors can sink 500 mA and will withstand a Vcf, of 50 Vin the OFF state. Outputs can be paralleled Ibr higher cuwent capability. Because of limitations on package power dissipation, simultaneous operation of all drivers at maximum rated current can only be accomplished with a reduction of duty cycle.Type UCS-4401H, the four-latch device, is furnished in a standard 14-pin sidebrazed hermetic package. Type lJC'S-4RO1H, the eight-Inch device,is furnished in a 22-pin side-brazed hermetic package with row centers 0.400-inch(10.16 mm) apart Monolithic construction enables cost-effective and reliable systems design. Reverse-bias burn-in and 100%high-reliability screening to MIL-STD-883.Class B are standard.

Information present at an input is transferred to its latch when the STROBE is high. A high CLEAR input will set all latches to the output OFF condition regardless of the data or STROBE input levels. A high OUTPUT ENABLE will set all outputs to the OFF condition, regardless of any other input conditions. When the OUTPUT ENABLE is low, the outputs depend on the state of their respective latches.

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